mastertec.com - robtex.com
mastertec.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1776983296 | ||||||
Subdomains
mail.mastertec.com |
Same first word
Similar names
DNS History
7 records (6 active, 1 former)
●NSns01.domaincontrol.com2015-08-16 → 2026-04-23 · 2 obs
● 2026-04-23 22:31:30
●NSns02.domaincontrol.com2015-08-16 → 2026-04-23 · 2 obs
● 2026-04-23 22:31:30
●MXinbound-smtp.us-east-1.amazonaws.com2026-02-24 → 2026-04-23 · 3 obs
● 2026-02-24 12:17:24
● 2026-04-23 22:31:30
●MXmailstore1.secureserver.net2015-08-16 → 2026-04-23 · 2 obs
● 2026-04-23 22:31:30
●MXsmtp.secureserver.net2015-08-16 → 2026-04-23 · 2 obs
● 2026-04-23 22:31:30
○A50.62.226.12015-08-16 → 2020-04-06 · 4 obs
● 2020-04-06 08:33:58
○ 2026-02-24 12:17:24
○ 2026-04-23 22:31:30
●A72.167.76.562026-02-24 → 2026-04-23 · 3 obs
● 2026-02-24 12:17:24
● 2026-04-23 22:31:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, j.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net... | - |
| mastertec.com | ns01.domaincontrol.com, ns02.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:97.74.100.1
NS records: ns01.domaincontrol.com, ns02.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mastertec.com (unsigned zone)
⏱️ Timing
Total: 156ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 72.167.76.56 |
| NS | 2 | ns01.domaincontrol.com, ns02.domaincontrol.com |
| MX | 3 | smtp.secureserver.net (pri: 0), mailstore1.secureserver.net (pri: 10)... |
| TXT | 1 | v=spf1 include:secureserver.net -all |
| SOA | 1 | ns01.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns01.domaincontrol.com, ns01.domaincontrol.com, ns02.domaincontrol.com...)
Analysis
Hierarchy
mastertec.com is parent of mail.mastertec.com.
IP Addresses
mastertec.com points to a single IP: 72.167.76.56.
Other host names, for instance gicf.co, mail.practicaldivorcesolutions.com, costonet.com.mx, exploringoutdoors.com and mail.ironhorseministries.com share IP numbers with mastertec.com.
Name Servers
mastertec.com's delegation is to two name servers ns01.domaincontrol.com and ns02.domaincontrol.com.
mastertec.com shares the same name server configuration as other domains, such as pay.exchange, gluckenterprises.com, carmasmusic.com, vahomeschoolers.org and jos-soadcs.com.
Host names with two IP numbers: ns01.domaincontrol.com points to 2603:5:2140::1 and 97.74.100.1; ns02.domaincontrol.com points to 2603:5:2240::1 and 173.201.68.1
Mail Servers
mastertec.com is handled by three mail servers: mailstore1.secureserver.net, smtp.secureserver.net and inbound-smtp.us-east-1.amazonaws.com.
mastertec.com shares some mail servers with other domains, including regionband.com, beulahbelleband.net, datakore.net, beisapp.com and willhongkong.com.
These mail servers are often used alongside the mail servers inbound-smtp.us-west-2.amazonaws.com.
Five IP numbers per host name:
inbound-smtp.us-east-1.amazonaws.com points to 3.211.210.226, 44.206.9.87, 44.210.166.32, 54.164.173.191 and 54.197.5.236.
Three IP numbers per host name:
mailstore1.secureserver.net points to 216.69.141.78, 216.69.141.114 and 216.69.141.162.
smtp.secureserver.net points to 216.69.141.71, 216.69.141.84 and 216.69.141.113.